For a NumericUpDown control in VB 2005, how do I distinguish between a change to the numeric value made by the user (by changing the text or clicking the up or down arrows), and a change made internally by my code? The "Scroll" event works for user changes to the TrackBar control, but not for me on the UpDown control, and the ValueChanged event doesn't distinguish the source of the change.
View 8 Repliesi am creating an activeX control... in this control i want to manage what the tab key does. i may a user interface that allows tabs in the textbox or it might move the user to the next screen. i have everything working in the IDE, but when my activeX is loaded into the 3rd party application the tabs no longer trigger the key down event. i assume this is because the parent application has tab stops is there a way on a control by control basis to stop the normal execution of tabs?
View 1 RepliesI have a NumericUpDown Control on a form. In the Application Settings / Properties Binding, for the value parameter, i can't select my USER setting called : Heures (Integer / User).
[Code]...
But it's not saved.No problem for other settings (String / User). But i don't understand why the settings (Integer / User) are not saved.
I'm letting users select a date/time for a scheduled task to run, using two NumericUpDowncontrols. I'd like one-digit values to be padded with a leading 0, so as to display 09:00 instead of 9:0.
View 4 RepliesI have done some code so that when you choose a number from the numeriupdown it will look at the if statement and put the age into a category. the thing is the number in the updown doesn't go into the right category for me can you see what the problem is? [Code]
View 2 RepliesSo I'm currently working on a control that acts as a HTML editor. One of the thing that I need to do is insert tables, in order to do that I needed to provide the user with some options first. When thinking of the design for this, I decided to go with the form layout that Word 2003 uses;
Now as you may notice the third NumericUpDown control has "Auto" written in it. This is one of the values the other values include;
Quote:
0.7 cm
0.8 cm
0.9 cm
[Code]....
how I might be able to get my NumericUpDown control (or another control) to display those non-numeric options.
I have not been able to find a way to get the datetimepicker with ShowUpDown= True and custome format set to h:m tt to increment in 15 min intervals. I have been able to set it when the form is loaded to the nearest 15 min increment. But I need it to increment in 15 minutes units.
This can be down with the NumericUpDown control, but I need two of them one for the hour and one for the minutes and set it's Increment property to 15. Again I can set it to adjust to correct hour and the nearest 15 min. And of course I have to watch and when I go over 60 reset to zero and increment the hour control.
The users will be burly oil field workers using a Panasonic Tablet PC with a stylus in the field. It seems that it would be easier if I could increment the datetimepicker in 15 intervals.
I have done some code so that when you choose a number from the numeriupdown it will look at the if statement and put the age into a category. the thing is the number in the updown doesnt go into the right category?
'Assigning Textboxes and Combo Boxes To Memory
lblUsername.Text = Username
strCustomerName = txtCustomerName.Text
intCustomerAge = Val(NumericUpDownAge.Value)
[code]....
I have 10 values to compare against each other for duplicates and would like a recommendation to do this most efficiently. The values are associated with the NumericUpDown control. I'm using VS and VB 2010.
View 3 RepliesI have my numeric up and down control set up but there is one problem. When i run the application, there is an IBeam in the value box. I have got my alphabet and arrow keys mapped to other things so when i press them windows makes the annoying beep noise. How can i get rid of the IBeam from this control permanently? I have tried the read only setting but the beam is still there.
View 1 RepliesAs part of a program that I am composing, the user needs to enter a value by way of a NumericUpDown control on one particular form. Once this and other criteria have been evaluated, the program will then move to the next "step" of the program. If they use the spinner built into the NumericUpDown control, the event is fired on every change and that's all well and good, but if they double-click the value in the control then type the value in manually, it doesn't fire until the control no longer has focus. I can't depend that this might be the case however. Using the "KeyPress" event, I can in fact know when the control has focus and the user has typed but what I cannot seem to get it to do is to get the control to "read" these keystrokes as values until the control loses focus.
View 3 RepliesWhat syntax do you use to add decimal data held in a NumericUpDown control, and add it to a one dimensional array? Is there a keyword to sum all the items in the array into one number(For averaging purposes)?
Dim heightarray As String()
ReDim Preserve heightarray(0 To UBound(heightarray) + 1)
heightarray(UBound(heightarray)) = heightNumericUpDown.Value
I have created a user control tha inherits from the NumericUpDown Control.Is it possible to set the cursor position within the control?I am validating the text OnKeyUp, and formatting it when it meets certain criteria.To do this i have to do me.text = Fomatted(Me.Text), which sets the cursor back to the position 0, i want to set it to the end of the text area.
View 1 RepliesThe form has 2 ComboBox and 1 NumericUpDown controls. I would like to change value of NumericUpDown based on selection in ComboBox. For example:
ComboBox1 has three value. for instance, AAA, BBB, CCC
ComboBox2 has three value. for instance, DDD, EEE, FFF
The NumericUpDown should has range 0-6 sum of both ComboBox. For instance, if user select from ComboBox1 AAA and from ComboBox2 EEE the NumericUpDown should display value 5.
How to show discontinuous value in NumericUpDown control by VB.Net? [code]...
View 2 RepliesI have a form which allows the user to create a question to find items.One of the questions is in the format of Something > a numeric value..So I used the NumericUpDown control. I set the NumericUpdown control to a valid range of values like 1 to 100.The user can clear the numericupdown control in which case the "Value" property returns the previous value prior to the user setting it to a Null String.
View 3 RepliesI have a NumericUpDown control with a range of 10-50 and I want to have the selected number be multiplied by an amount of money to create yearly cost. I dont know, however, how to use inputted data from the NumericUpDown control in a statement because I cannot convert it to Integer and I also dont know how to call in the data even if a number is selected.
View 3 RepliesDoes anyone know of a way have the PropertyGrid control display a NumericUpDown instead of a DropDown box or text box? One of the properties that I need to capture is an integer and I'd like the user to be able to spin up or down to choose a value instead of typing it in.
View 1 RepliesI'm getting a 'NullReferenceException was unhandled' exception when a NumericUpDown control is cycled too quickly. To slow it down I've disabled the (NUD) control and set a 200 Interval Timer to re-enable it, but the exception is still happening.I don't want the slow the control down any further, I'd rather try to handle the exception, but can't find any help on how to do that.This is essentially the code which is incurring the exception, at the (4th) line... Dim p... : -
For b = 0 To 8
z = Pic(b)
[code]....
I figure I need to ensure each image is happily installed in it's 'Box before I try to load the next one, or it may be that I just need to check that the last one is 'in' before I call the next bit of code (which calls this bit again if I'm too fast) It all works perfectly well if I don't go too fast.
Is there a way to make NumericUpDown control hide decimal places but still can show if i entered manually?For example, i want to set NumericUpDown DecimalPlaces to 0 but when i enter something like 6.52, it remains 6.52 and not rounded to 7.
View 2 RepliesI have an application going here Form1 has a panel on it named TargetPnl. I need my TargetPnl to display my user control named Vviewer when I click my SearchBtn and also need it to disappear when I click another button.
View 1 Replieshow can i call a VB function - deleteevent() in usercontrol.ascx.vb from a javascript function in clickhandler(e) in usercontrol.ascx. The call should cause a postback because I need the usercontrol to display the changes.I am currently trying to do it by using a linkbutton with style display:none, and calling its click event from the javascript function. But i dunno how to call the click event.
View 2 RepliesI have an aspx page that has two different user controls. I want to find user control A and be able to set properties, etc., from user control B.
I was thinking I could do something like this:
Dim CMFilters As Control = Me.Parent.FindControl("CMFilters")
...but that doesnt work to be able to set properties and call methods. I somehow need to get the user control and and declare it as that user control type.
In a user control I have the code shown below.
I now realize that it is incorrect because the container's InitializeComponent property initializations have not run yet and they must be run prior to Refresh being called.
How (where) can I run Refreash after the container has initialized this user control.[cod]e...
i am using vb.net 2005 to developed desktop application I am having two windows form user control , the first control name con.vb containing the design and code for connecting to database and getting a list of my project values in combo box.
Now the second user control report.vb which i am using to generate some reports , since the code behind is using connection to connect to various project database , so i want to get the value of
First user control into another how i can get the i have tried the below but its giving me error in run time but no error in design or code behind -
MR.MainForm.Connection1.project_combobox.SelectedV alue.ToString
Error i am getting is :
System.NullReferenceException was unhandled
Message="Object reference not set to an instance of an object."
Source="MDR"
A user will enter a name and a text score of a student. The names and scores are saved in a list box and once they are stored I click 'show the array' and I get a parallel array filled with the names and scores.
I need to error trap the text box's so that when the user inputs a number its a number between 0 and 100. IF its not it needs to end the button click event.[code]...
What I want is a Global Error Trap that will not stop code execution. What I have found is examples where each module requires some code or a Try block. I need it to be totally generic. Everything from UnHandledExceptions to conversion errors.
If I have to use try blocks all over the place then it is not Global Error Trapping.
I need code at the highest level possible that will always catch any and all errors reported by VB.[code]...
I have an app in vb net 2005 which has code similar to' start external thread ShowRandom Images.start Open database & do other preliminary setup 'abort thread ShowRandom Images. abort 99 times out of 100 I never get a problem, but if system appears to be slow or other heavy processing, I get "Thread being aborted"..How can I trap or ensure the error message does not get to my users
View 6 RepliesI am working on an app that uses a third-party charting component.It is a .Net component. There have been some occasions when exceptions have occurred inside the third-party component code, but my try/catch is not trapping them.Should they get trapped?My code is structured roughly like this:[code]I have since found and fixed what was causing the exceptions, but I would have thought that this should trap them. What happens when I run in the IDE is that it crashes and Visual Studio throws up a page telling me there is no code available to debug, and no disassembly available.Fair enough, but I repeat - why doesn't the exception get trapped?
View 4 RepliesI am having problems clicking a link on a page.I was thinking of trapping the click events in the web browser when I manually click the link to see if it uses any other post variables from that page or what happens when I click the link.
View 7 Replies